Two problems related to wiring have been reported for the 2018 Chevrolet Silverado 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Chevrolet Silverado 2500 based on all problems reported for the 2018 Silverado 2500.
Dash warning: check engine light, "engine power is reduced!" and traction control. Code reader results: p2138 (app) accelerator pedal position sensors - not plausible. Replaced with new oem part(s) - app, electrical throttle body and m15 fuse - which did not fix issues and now due to safety concerns (further damage to vehicle and personal preservation) will be towing to dealership for diagnosis. Believe to be a known wiring issues most likely due to water exposure/ short in connectors. - see ip, ecm/pcm and possible false activation to the app circuit. This should be a recall due to the severity of mechanical issues of the malfunctioning system.
Diesel l5p 2017-current. When having the engine block heater plugged in, I have seen multiple trucks burn down from having a short somewhere. I have also seen the cord for the engine block heater rub against the wiring harness and rub the insulation off exposing the bare wire. I believe when this happens, an electrical arch jumps from the wire to ground a starting a fire. Please investigate engine block heater cord and it rubbing against sharp edges exposing bare wire.
| Electrical System problems | |
| Integrated Trailer Brake Control problems | |
| Wiring problems |